Automatic fireproof window.



PATENTBD MAR. 20, 19 08 I T. WILKINSON. AUTOMATIC FIRBPROOF WINDOW.

T A fiumwm APPLIOATIDN FILED HARM, 1905.

WITNESSES No. 815,772. PATENTBD MAR. 20, 1906.

B. T. WILKINSGN. AUTOMATIC FIRBPROOF WINDGW APPLIGATION FILED HAB.13,19U5,

5 SHEETS-4333B? 2 No. 815,772. PATENTED MAR. 20, 1906. B. T. WILKINSON. AUTOMATIC FIREPROOF WINDOW.

APPIJUATION FILED MAR. 13, 1905 5 SHEETS-SHEET &

INVENTDR:

WBTNESSES:

% m6 7 51mm? Imam $012 M "1 No. 815,772. 'PATENTBD MAR. 20, 190$ E. T. WILKINSON.

AUTOMATIC FIRBPRO'OF WINDOW.

APPLIUATION FILED MAB-J3, 1905 5 s HITS-SHEET 5' Flzilli WITNESSES: 16 I'NVENTOR:

UNITED sTA rns PATENT OFFICE.

AUTOMATlC FlREPROOF WINDOW.

Specification of Letters letent.

Patented March 20, 1906.

Replication so Harsh 13,1905. semi in. see-264.

To all. whom it may concern:

Be it known that I, Enmziuz 'l. Wi i.1 i.\'- SON, e citizen of the United States, residing at No. 2022 East Allegheny avenue, in the city of Philadelphia, county of Philadelphia, and State of Penn's 'lvenie, have invented certain new and usefu Improvements in Autometir Fireproof Windows; of which the following is a specification, reference being had to the ac.- companying drawings.

My invention relates to a fireproof 'window composed entirely of infolded and interlocked pieces of sheet metal and provided with automatic-means whereby any undue rise in temperature causes the sashes, if open, to close themselves.

My invention relates also to means for efl'ecting the swinging of the sashes open a horizontal pivot in such a window, and also their removal, when desired, from the frame. To this end I provide the jembs of the frame with a telescopic or collapsible siidqwhieh when projected forms part of the runway forthle sashes, confining them to vertical movement, but which when retracted permits of the swinging or removal of the sashes, as stated.

In the accompanying drawings, Figure 1 is a. central vertical cross-sectionof a window emhodyin my invention broken ewe. in the center. i 2 is a central vertica longi 'tudinsl section of the some, showing on! the lower right-hand corner and 11 part o'the right-hand jumbo? the frame. Fig.7} is at front elevation of the 11 per lcfthand corner of the frame, showing a so broken. ortions of the side rail of the up r sash. ig. 4. is a front elevation of the ower right-hand cornor of the frame with broken ortions of the side rail of the lower sash. ig. 5 is a plan view'oi' the upper left'haml cornenof the frame with thc top plate removed. Fig. 6 is a horizontal section through the iefthend jarnb of the frame, showing parts of the two sashes, the section being taken elon the line g. 3. F i 7 is an inverted on view of the ower ie t-hend corner of t hand corner of the frame. Fig. 9 is a orizontel section of the jamb similar to Fi 6, but

with the sashes omitted and the teescopic slide retracted, said section beih taken on the line 9 9 in Fig. 10. Fig. 10 is an inside elevation of the lower left-hand corner of he frame. Fig. 11 is on outside elevation of the frame. 1

Fig. 8 is an inside elevation of the up or left-' runwsys upper left-hood vorner of the lower sash. Fig. 12 is a horizontal section of the left-hand rail of the lower snsh, taken along the line 12 P3 in Fi 1!. Fig. 13 is an outside elevation oi the liiwor left-hand corner of the lower ssish. Fig. 14 is a sideelevation of the righthnnd side of the up )or corner of the lower sash. Fig. 15 is a sh e elevation of the righthand side of the lower comer of the lower sash. Fig. 16 is a. vertical longitudinal sec tion through the right-hand portions of the lower sash, taken along the line 16 16 of Figs. 14 end 15, and also partly broken. Fi 17 is a vertical central cross-section throng the meeting-rails of the two sashes. Fig. 18 is a ertiel to view of the meeting-re1 of the liiwer see 1 with the sliding piece thereof partly withdrawn. Fig. 19 is a central verticel cross-section through the upper sash when swung open, showing port of the lefthend 'amh oi the frame in relief.

i will first descrihe the windowfrerne. is com used entirely: of sheet metal, referehly o galvanized iron, and is built'up y the infolding and interlocking. of 'parts without the use of solder or riveting or any other elements of construction lieh e to be destroyed by intense heat. The construction of the frame is shown in detail in Figs. 1 to 10, inclusive. 7

The head of the frame-is shown in crossscction in Fig. i, and consists mainly of the piece A, bent, as shown, to form the front,

nick, end bottom or facing, the latter hav ing a seat for the top sash. The upper ends of the piece A are united by another piece A", which forms the top ofthe head of the frame, the unioh being effected by interlocking along the ed es, esshown.

Eac iamh is composed chiefly of the piece B, folded so as to form the front, back, and outside of the jemb, es weii as art of the coves of the inside or facing. he remainer of the jemb'tha.t is to say, the portionv which faces the sashes-is formed of a. piece B, the edges of which enter a. fold eion the edges of woe B. It is bent so as to iorm b for the shoes of the sashes, and also a. deep central seat 6' for thetelescopic slidewey. Alon the median line of this seat the 'iece B is ntto form a. ddeo hollow fold the functions oiwhich will hereinafter he described. The pistes B of the two jambs ereunited to the piece which forms the head of the frame by means of a series of interentrant angle are made to correspond in inclinetion to those of the head of the slidowey which is to enter it.

The upper sash is formed substantially as is the lower sash, exce t that the rocntront angle formed in the si e rails is in reversed position, as best seen in Fi 6. In this way the two sashes are both he d in vertical relation'to the slidewey when it is projected. Furthermore, by reason of the inclination of the inner edges of the beads on tho sildeway, its projection draws the two sashes closer toget or and when in itsfully-pro 'eoted position holds them so as to l)l'll%l,l18 meetingrails into close proximity. .18 top rail of this sash has a top piece which slides sidewise like the iece h of th'e meeting-rail of the lower one Themeeting-rail L of the upper sash is shown in Fig. 17. It consists of but two pieces, the iece l forming the sides and moldingwit the groove for the one and the piece 1 forming the bottom on also the angular flap I, produced by the inteilolded arts ofthe edges of the two pieces, which interlocks with the corresponding flap of the meeting-rail of the lower sash.

Both sashes ere hung by chains pessin over the polls s d (I one counterweighted upon the ends 0 the chef. Binside of the jombs, with, however, the pg tilierity that the upper sash is overweighted and the lower sash underweiahcted, so that unless otherwise restrained B' serves to form a partition which keeps the two weights which occu y each jenib separated from each other. t may here be noted that the seat in the jamb for the telescopic slideway bein completely inclosed no notion of the. sli away can affect or in any way interfere with the motion of the weights.

The width of the sashes is such that when the telescopic slideway of the 'emios is retreoted .as seen in Fig. 9, the ses es can pass freely through the space between the jembs. Both sides of both sashes are, however, rovided with a friction device or friction-s oe one of which as seen in Fig. 16, is attache approximnteiy centrally 'to each side rail.

consists of a shoe M, with a control boss m, pivoted to thecross-bar o, inserted in the side of the sash. Thechains upon which the sashes are hung are fastened to the bosses m.

The inner end of each cross-bar 0 is it tached' to a long flat motel spring p, which runs down the interior of the side rail ofthe sash nearly centrall and is near the botto deflected tower the inner edge, against Whl it finds its oint of attachment. The normal pressure this spring tends to force the shoe M outwardly against the side of the jamb, but not in itself with sufiicient pressure to hold the sash in an opened position sashes tend to close their selves. The deep fold b of each of the pieces against the countervailing tendency o1" the overweight or underweight, es the case ma he. in order to increase the pressure of tlllH spring sulliciently to enable it to hold the sash in any position in which it is set, there is provided a link "1, pivoted against the innor edge of the see -rail at p and having its free end hearing against the extended upper end of the flat spring To this link P is atteched a long rod 1 wh'ch roaches down to near the bottom of the sash-rail, where it is attached to a not it upon a screw it, the head of which is seated in a countersunk cap it in the bottom edge of the lower rail of the sash, where it may he turned for adjustment from the outside. By sulliciontly tightening this screw the rod N may he drawn down so as to cause the link l to press against the sprin p sufiiciently to force the shoe M out wardry with such pressure as to maintain the sash in pos tion. Within the cap n a. fusible block is inserted between the end of the cap on! the head of the screw. There is also a. coiled sprin q interposed between the end of the cap and the nut n. If now by reason ofheet the fusible block Q melts, the pressure of the sprin immediately forces the rod N and the fini l upward, thus releasing the shoe M from that pressure wlL'ch maintained the sash in its open position and allowing it to rise or fall to its closed position, thus in case of fire'eiiecting the immediate closure of aii open windows in a building fitted with my invention.

1t willbe observed from Fig. 6 that the shoes M are projected by the springs n into the runways b, formed'in the feces of the jamhs. In this way thesnshes are normally subject to double control in'their vertical movement-namel that resulting from the projection of the to escopio siidewe into the rentrnnt an le of the side rail 0 the sash and that reslfiting from the'projection of the shoes into the ninways of the frame. For the purpose of swinging the sash for cleaning or other pur oses, as shown in Fig. 19, the teleseo ic sii' eway is retracted by means of the hen le-ber G, as a result of wlnoh both sashes are rendered free to swing upon the pivotsof the shoes which they carry. \Vhen thus swung to a horizontal position, it is easy to remove the sash from the frame altogether h raising one side more than the other, which causes the shoes to slip out of their runwo s.

Having t us described my invention, I oleim 1 l. In it metallic window the combination of sashes fitted at their sides with pro'ecting shoes; pivotelconnection between sai shoes and sashes; runways formed in the facings of the jenih and receivin the shoes; 8 nd a telescopic slideway move le within said facing between the runways but jornnng no part gages them hes and when retrneted is wholly free them l'roin, substantially as deseribed.

2. In an :lHlUlIlittl('tlll V-(lUHlH; Hull-(unlbustible window. having runways formed thereon, and also a r'olhipsihle slideway te|e:-;eo;in,g therein; sashes fitted with prujeeting s noes entering the runways; pivotal eonneetion between said shoes and the sashes; an overweight for the upper sash, and an underweight for the lower sash; grooves in the sides of the sashes whieh are engaged by the eellapsible slide way when projeeted and freed from it when retraeted means for reusing t he shoes to normally exert pressure ell'eetive to maintain their sashes in open )osition; and a l'usible plug by the melting oi WlIlI'll under the in lluenee of undue heat said elleetive pressure upon the shoes is released, and the sash is altheeombinationolthejamb 1 lowed to automatir'ally elose, substantially as deseribed.

3. A metallie windmr-sash, having a rail formed of sheet-metal pieees, the inside and outside pieees having a spare between their edges for the insertion oi" the pane; in combination with an edge pieee whieh is united to the other two only by the intti'lnlding of their edges, and held in plane by llaps bent out from the side pieees, whereby it is eapable of being slid endwise out of the sash for the purposeol' removingorinserting a pane, substantially as deseribed.

4. In a sheet-metal window, a janib with a weight-spare; a seat oeeupying a median popable ol' projw-tion therefrom; said slideway 4o sashes,

when iro eeterl engaging both of the weightand w HIl retraeted not entering the space, substantially as described.

5. The combination with revolving wiu (low-sashes, of a duplex telescopic wind-stop 5 and guidewav-stri loeated in a central vertieal groove o the t me of eaeh window-frame stile and having a rib for eaeh sash respectively, said sashes respeetively rooved .for eoaetion therewith, and means ieally adjusting the stops, substantially as deseribed.

6 The eonibination with revolving win' (low-sashes, of frame-stiles having a eentral vertieal stop-groove, stop and guideway rips located in said grooves and havin a rib along each edge of the laee, and sash-stiles having a roove in the fare enacting with the ribsi of t e uideway-strip respectively, the e1 lges of said faces contiguous to the plane of the renter of the guideway-strips substantially as deseribed.

in testimony whereof I signed my name, vania, this 11th day of March, 1905.

ELEAZAR T. WILKINSON.

Witnesses:

JAMES H. BELL, E. L. FT'LI-ERTON.

have hereunto or teleseop- 5o duplex telescopic windsaid grooves being in at Philadelphia, Pennayl- 

